An Efficient Combination of Multi-channel Acoustic Echo Cancellation with a Beamforming Microphone Array
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چکیده
For hands-free man-machine audio interfaces with multi-channel sound reproduction and automatic speech recognition (ASR), both a multi-channel acoustic echo canceller (M-C AEC) and a beamforming microphone array are necessary for sufficient recognition rates. Based on known strategies for combining single-channel AEC and adaptive beamforming microphone arrays, we discuss special aspects for the extension to multi-channel AEC and propose an efficient system that can be implemented on a regular PC.
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تاریخ انتشار 2001